A tangent line is a line that only passes through one point of a function and represents the slope at that point on the function. A normal line is the line that is perpendicular to the tangent line of the function.
Ex: If the slope of the tangent line is 3/4, then the slope of the normal line would be -4/3.
Ex: If the slope of the tangent line is 3/4, then the slope of the normal line would be -4/3.
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